rhyolite

N หิน ภูเขาไฟ เนื้อ ละเอียดช นิดหนึ่ง ที่ อุดม ด้วย ซิ ลิก้า 

RHYOLITE

Rhy "o *lite, n. Etym: [Gr. -lite. ] (Min. )

rhyolite

rhy o lite |ˈrīəˌlīt ˈraɪəlaɪt | ▶noun Geology a pale fine-grained volcanic rock of granitic composition, typically porphyritic in texture. DERIVATIVES rhy o lit ic |ˌrīəˈlitik |adjective ORIGIN mid 19th cent.: from German Rhyolit, from Greek rhuax ‘lava stream ’ + lithos ‘stone. ’

rhyolite

rhyolite |ˈrʌɪəlʌɪt | ▶noun [ mass noun ] Geology a pale fine-grained volcanic rock of granitic composition, typically porphyritic in texture. ORIGIN mid 19th cent.: from German Rhyolit, from Greek rhuax ‘lava stream ’ + lithos ‘stone ’.